1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/ide/sh/ide-sh.c b/drivers/ide/sh/ide-sh.c
new file mode 100644
index 00000000000000..7be546dec76687
--- /dev/null
+++ b/drivers/ide/sh/ide-sh.c
@@ -0,0 +1,95 @@
+/*
+ * SuperH default IDE host driver
+ *
+ * Copyright (C) 2004, 2005  Paul Mundt
+ *
+ * Based on the old include/asm-sh/ide.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/irq.h>
+
+enum {
+	IDE_SH_CFCARD_IO = 0x1f0,
+	IDE_SH_PCMCIA_IO = 0x170,
+};
+
+static struct sh_ide_hwif {
+	unsigned long base;
+	int irq;
+} sh_ide_hwifs[] __initdata = {
+	{ IDE_SH_CFCARD_IO, IRQ_CFCARD },
+	{ IDE_SH_PCMCIA_IO, IRQ_PCMCIA },
+	{ 0, },
+};
+
+static inline int __init hw_setup(hw_regs_t *hw, int idx)
+{
+	unsigned long base = sh_ide_hwifs[idx].base;
+
+	if (!request_region(base, 8, "ide-sh"))
+		return -EBUSY;
+	if (!request_region(base + 0x206, 1, "ide-sh")) {
+		release_region(base, 8);
+		return -EBUSY;
+	}
+
+	memset(hw, 0, sizeof(hw_regs_t));
+	ide_std_init_ports(hw, base, base + 0x206);
+
+	hw->irq		= sh_ide_hwifs[idx].irq;
+	hw->chipset	= ide_generic;
+
+	return 0;
+}
+
+static inline void __init hwif_setup(ide_hwif_t *hwif)
+{
+	hwif->mmio = 2;
+}
+
+void __init ide_sh_init(void)
+{
+	int i, idx;
+
+	printk(KERN_INFO "ide: SuperH generic IDE interface\n");
+
+	for (i = 0; i < MAX_HWIFS; i++) {
+		ide_hwif_t *hwif;
+		hw_regs_t hw;
+
+		if (!sh_ide_hwifs[i].base) {
+			printk(KERN_ERR "ide-sh: Attempting to register ide%d "
+			       "when only %d interfaces are available.\n",
+			       i, i - 1);
+			break;
+		}
+
+		if (hw_setup(&hw, i) < 0)
+			goto region_cleanup;
+
+		idx = ide_register_hw(&hw, &hwif);
+		if (idx == -1) {
+			printk(KERN_ERR "ide-sh: IDE interface registration failed\n");
+			i++;	/* release this interface too */
+			goto region_cleanup;
+		}
+
+		hwif_setup(hwif);
+	}
+
+region_cleanup:
+	for (idx = 0; idx < i; idx++) {
+		unsigned long base = sh_ide_hwifs[idx].base;
+
+		release_region(base + 0x206, 1);
+		release_region(base, 8);
+	}
+}
+